John Deere Fault Code
Free · no signupECU 000097.03
Water in Fuel.
System
Not specified
Symptom
Water in Fuel.
Diagnosis & fix steps
LOGIC: Water-in-fuel sensor detects high conductivity in the bowl.
ACTION: Drain the primary fuel filter separator immediately; check for tank contamination.
Red Seal field insights
Pro-Tip: If the bowl is clear of water but the code stays, the sensor probe is likely "filmed" over with algae/slime. Clean the probes with a rag.
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